//package com.jhl.seckill.filter;
//
//import com.alibaba.fastjson.JSONObject;
//import org.springframework.cloud.gateway.filter.GatewayFilter;
//import org.springframework.cloud.gateway.filter.factory.AbstractGatewayFilterFactory;
//import org.springframework.core.io.buffer.DataBuffer;
//import org.springframework.core.io.buffer.DataBufferUtils;
//import org.springframework.http.server.reactive.ServerHttpRequest;
//import org.springframework.util.StringUtils;
//import reactor.core.publisher.Flux;
//
//import java.nio.CharBuffer;
//import java.nio.charset.StandardCharsets;
//import java.util.concurrent.atomic.AtomicReference;
//
//public class ValidateCodeFilter extends AbstractGatewayFilterFactory<Object> {
//    @Override
//    public GatewayFilter apply(Object config) {
//        return (exchange, chain) -> {
//            ServerHttpRequest request = exchange.getRequest();
//
//            // 非登录/注册请求或验证码关闭，不处理
//            if (!StringUtils.containsAnyIgnoreCase(request.getURI().getPath(), VALIDATE_URL) || !captchaProperties.getEnabled())
//            {
//                return chain.filter(exchange);
//            }
//
//            try
//            {
//                String rspStr = resolveBodyFromRequest(request);
//                JSONObject obj = JSONObject.parseObject(rspStr);
//                validateCodeService.checkCaptcha(obj.getString(CODE), obj.getString(UUID));
//            }
//            catch (Exception e)
//            {
//                return ServletUtils.webFluxResponseWriter(exchange.getResponse(), e.getMessage());
//            }
//            return chain.filter(exchange);
//        };
//    }
//
//    private String resolveBodyFromRequest(ServerHttpRequest serverHttpRequest) {
//        // 获取请求体
//        Flux<DataBuffer> body = serverHttpRequest.getBody();
//        AtomicReference<String> bodyRef = new AtomicReference<>();
//        body.subscribe(buffer -> {
//            CharBuffer charBuffer = StandardCharsets.UTF_8.decode(buffer.asByteBuffer());
//            DataBufferUtils.release(buffer);
//            bodyRef.set(charBuffer.toString());
//        });
//        return bodyRef.get();
//    }
//}
